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In this video, we'll run and configure code light on Mac OS ten.

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Now we've already installed the compiler tools and we've installed code light.

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So let's run code light, we'll come up to spotlight, search and type code light and double click on

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the icon.

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We'll allow it to run.

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Now the first time that code light runs, a couple of things will happen.

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You'll get this small code light window show up and then you'll get a setup wizard.

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We can just leave that window smallest.

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We'll make it larger in a minute.

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It's not really going to get in our way right now.

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It's important is that we run this setup wizard.

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If the setup wizard does not start, come up to code lights menu and go up to help and then run the

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setup wizard and run it manually.

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But here in this case, it did pop up.

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So let's select next.

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Code Light uses a bunch of plug ins to allow support for PHP and Node and other technologies.

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We don't really want all that.

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We only want the C++ plug ins.

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The rest are just going to clutter up our interface.

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So what we can do here is we can press clear and then just toggle the C++ plugins that way.

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Only some of these will show up, which is exactly what we want.

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We just want to concentrate on C++, Select next.

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Now we can scan our computer for any installed compilers.

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We can press this button here and you can see it's found DCC Clang and across DCC we're going to use

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GCC.

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They're really the same, but we'll use GCC here and press next.

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Now the customization of the theme is really up to you.

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This is your personal preference.

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The monarchy dark theme is real nice and easy on the eyes, but it doesn't show up too well on video.

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So I'm going to select the classic Eclipse theme and select next.

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We'll keep these defaults and press finish.

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Now, what we can do here is we can say save and exit.

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You want to be sure that you save so we can save the changes we've made

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and we can run code light again.

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So this time I want to make this window nice and big

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and we've got a couple of options that we still need to configure.

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But before we do that, we need to create a workspace.

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You can create a workspace by clicking this button here or by coming up to file new workspace.

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Either place works fine.

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A workplace is just an area where we can have our C++ projects, so we can have multiple projects in

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a workspace.

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So I'm going to select new workspace, and the workspace name could be anything you like.

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I'm going to say keep workspace.

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Don't use any spaces here, just keep it all together.

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And I want to create the workspace under a separate directory so I can keep my files organized.

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I'll select, okay.

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And you can see that it's created the workspace over here on the left pane.

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Now we need to create a C++ project so you can right click on that and select new project, or you can

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select the workspace and then come up to file new project.

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Either way, now we've got some options.

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We're going to create console project and simple executable G plus plus right here.

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And that's the compiler we're going to use and we'll select next the project name again.

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Don't use any spaces here.

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Just create your name, the name for your project, whatever you like.

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I'm again, I'm going to create a separate directory for each project and I'll select next.

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As far as the compiler, we want to use the GCC compiler, but the debugger, we don't want to use the

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new debugger, we want to use the LTB debugger.

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That's the Apple debugger.

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We'll select finish.

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And you can see over here on the left that we've created a project called Test one and it's got a source

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directory and it's got a file there called Main CP.

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Now before we run that file, there's a couple of things that we need to set up.

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First click on the project in this case, test one right click and then come down to settings and select

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that.

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Then down here toward the bottom where you see global settings come up to compiler options and select

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the right side.

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And then you'll see this little button right here with the three dots.

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Select that.

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And what we want to do here is we want to check a couple of options.

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We scroll all the way up and I want to select enable all compiler warnings wall and I want to enable

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C++ 14 features.

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That's the latest standard.

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That's modern C++.

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I want to make sure that that's enabled and this guy doesn't come on, but you can see that it is there

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something sometimes it doesn't check on.

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You can see that the command line is correct.

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So just click.

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Okay, I'll apply and click.

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Okay, perfect.

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Now go to the workspace, select it right click on it and come down to workspace settings.

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And you'll see we have environment and code completion, select code completion and check the Enable

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C++ 14 standard.

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The Integrated Development Environments use code completion.

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They try to figure out what you're typing and what you want to do and where you want to go and really

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help you out with suggestions.

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In this case, we're simply telling code light to use the C++ 14 standard.

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For those suggestions, I'll click.

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Okay, and that's it for the setup.

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Now let's modify this C++ file and run it.

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Let's double click on that.

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And that font is really small.

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So what I'm going to do is I'm going to make it a little larger so it shows up better on the video.

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Most likely you won't have to touch it at all.

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But I'm just going to come to settings, colors and fonts, and I'll set the font to, let's say 18

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and I'll apply that and that should be much more readable.

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Okay, so now let's modify this file.

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This is actually C code, not C++ code.

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So let's get rid of all this and we'll type a simple C++ program that will test our installation during

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this course.

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I will go in detail through the anatomy of a C++ program, and everything that I'll be typing here will

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be explained.

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But for now, just follow along, type along to make sure we've got a clean install.

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So the first thing you want to do is going to type pound include and we want to put IO stream in angled

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brackets and press enter then int space main left and right paren.

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Then we want to open up a left curly and you can see that the IDE has closed it for me.

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And then what I want to do here is I just want to say STD two colon side by side, no spaces and then

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see out the insertion operator, which is two less than sines again together with no spaces and anything

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you want to type here as far as.

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Hello testing.

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We want to type a string inside double quotes and a semicolon at the end, and then next line will be

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returned.

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Zero.

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That's it.

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That's the entire program.

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When we run this program, what we want to do is we want to display hello testing to the console.

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That's all it's going to do.

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I'll save this

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under save file at this point on your end, you may want to do view, toggle, minimal view and that'll

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display.

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Let me do that again.

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That will display some buttons and things up here which you might find useful.

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I'm not going to do that because it clutters up the screen and I don't want any distractions when I'm

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teaching the class.

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So I'll toggle that away.

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And what I'll do is, rather than click on the buttons, I'll be really explicit as to let's click on

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Build, Run, Build, Clean, and so forth.

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That way you can see exactly what's going on.

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Once you get familiar with the ID, you can use those buttons.

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That's it.

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So I've saved it.

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Now I want to run this.

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First thing I want to do is I want to go to build and clean the project.

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When we clean a project, we're basically just wiping out everything that's been done in the past except

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the source code.

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So the project is in a state that's ready to go, so I'm just going to clean it and then I'm going to

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come back up to build and I'm going to say Run.

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Now it's going to give me an option that says, Would you like to build the active project before executing

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it?

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Of course I do, because I haven't built it yet in this case.

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So I'm going to select, build and execute and that will compile the program and open up a window.

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And there's the output right there.

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Hello?

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Testing.

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So this terminal window is running the program that I just wrote.

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That's it.

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It's a simple as that.

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Some things could go wrong, though.

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Suppose that you forgot the semicolon here and I'll save it.

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And then I'll do the same.

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I'll do run, build and execute.

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And you can see if I move this window just slightly up.

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You can see that I've got a compiler error and this is what compiler errors look like.

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You see the red text here and it says error expected a semicolon after an expression.

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Also you'll see that little red arrow right here telling you there's just something wrong here.

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And basically what you need to do is put a semicolon there.

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Just type the program really carefully, exactly like I did it.

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You won't have any problems, but you could have things missing like this quote.

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This first quote is missing.

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This you might have three less than signs.

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There's all kinds of little things that could go wrong with the program.

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But if you just be very careful, type it in, save it and come back up to build and run, build and

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execute.

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And you can click on there if you like that we don't have to keep doing it all the time.

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And there's the run.

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That's it.

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We're all set on Mac.

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We've installed the command line tools, we've installed code light, we've configured code light and

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we're good to go.

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Now let's start learning C++.